Noise temperature of a prototype optical sensor for a multimode gravitational radiation bar detector
Abstract
The measurement of displacement white noise and back action noise force in a 1.5 cm long high-finesse Fabry-Perot interferometer is reported. Both these noise components are essential in the evaluation of the sensor performance of bar detectors. The displacement noise of the prototype optical sensor of the detector is 1.5 x 10 exp -15 m/sq rt Hz and corresponds to a resolution in h at 1.5 x 10 exp -18/sq rt Hz in a 1000 kg/0.001 kg antenna/last resonator system. The noise temperature of the optical sensing method is 15 micro-K.
- Publication:
-
Lasers 1990; Proceedings of the 13th International Conference on Lasers and Applications
- Pub Date:
- 1991
- Bibcode:
- 1991laap.conf..560R
- Keywords:
-
- Gravitational Waves;
- Noise Measurement;
- Noise Temperature;
- Optical Equipment;
- Cavity Resonators;
- Fabry-Perot Interferometers;
- Helium-Neon Lasers;
- White Noise;
- Instrumentation and Photography